
from crypt import methods
import time
from datetime import datetime, timedelta

from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info.models import User, News, Category
from info.modules.admin import admin_blu
from info.utlis.common import user_login_data
from info.utlis.image_storage import storage
from info.utlis.response_code import RET

#新闻的分类管理
@admin_blu.route('/news_type',methods=['GET','POST'])
def news_type():
    if request.method=="GET":
        #查询新闻分类
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_type.html', errmsg="数据查询失败")

        category_dict_li = []
        for category in categories:
            category_dict_li.append(category.to_dict())

        #删除最新
        category_dict_li.pop(0)
        data = {"categories":category_dict_li}

        return render_template('admin/news_type.html',data=data)

    #进入post
    #新增或者添加分类
    #1 取参数
    cname = request.json.get('name')
    #如果传递了cid 代表 编辑自己存在的分类
    cid =request.json.get('id')

    if not cname:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if cid:
        # 有 分类 id 代表查询相关数据
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
        category.name = cname

    else:
        category = Category()
        category.name = cname
        db.session.add(category)

    return jsonify(errno=RET.OK, errmsg="OK")






#新闻版式编辑页面路由
@admin_blu.route('/news_edit_detail',methods=['GET','POST'])
def news_edit_detail():
    if request.method=="GET":
        #取到newsid
        news_id = request.args.get('news_id')
        #判断是否存在
        if not news_id:
            abort(404)
        #判断类型
        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")

        #查询数据
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询错误")

        if not news:
            return render_template('admin/news_edit_detail.html', errmsg="未查询到数据")

        #查询分类的数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html',errmeg='查询错误')

        category_dict_li =[]
        for category_obj in categories:
            category = category_obj.to_dict()
            #判断当前新闻的分类id是否和遍历的相同
            if news.category_id == category_obj.id:
            #添加属性 以便在前端做判断是不是本身的新闻分类
                category['is_selected'] = True
            category_dict_li.append(category)

        #移除最新的分类
        category_dict_li.pop(0)

        data = {
            'categories':category_dict_li,
            'news':news.to_dict()
        }

        return render_template('admin/news_edit_detail.html',data=data)

    #表单提交post请求

    #  1  获取参数
    news_id = request.form.get('news_id')
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    #2 判断数据是否有值
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 查询指定的新闻
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询失败")
    if not news:
        return jsonify(errno=RET.PARAMERR, errmsg="新闻不存在")


    if not index_image:
        return jsonify(errno=RET.PARAMERR, errmsg="未获取到图片")
    # 3 尝试读取图片
    try:
        index_image = index_image.read()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="图片读取")

    # 4 将图片上传到七牛云
    try:
        key = storage(index_image)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="上传图片错误")
    #修改属性当前新闻的
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + key

    #修改其他属性
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    return jsonify(errno=RET.OK, errmsg="OK")



#返回新闻版式编辑列表显示的路由
@admin_blu.route('/news_edit')
def news_edit():
    page = request.args.get("p", 1)
    # 获取搜索框的内容
    keywords = request.args.get('keywords', None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    # 添加搜索条件
    filters = [News.status != 0]
    # 判断是否否有搜索值
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}


    return render_template('admin/news_edit.html',data=context)



#审核通过与不通过的实现
@admin_blu.route('/news_review_action',methods =["POST"])
def news_review_action():
#接受参数
    news_id = request.json.get('news_id')
    action =request.json.get('action')

#判断参数
    if not all([news_id, action]):
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if action not in("accept", "reject"):
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

#查询指定的新闻
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    #判断 通过还是不通过
    if action=="accept":
        #代表通过 修改新闻状态
        news.status = 0
    else:
        #代表拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.NODATA, errmsg="请输入拒绝原因")
        #修改status属性
        news.status = -1
        #修改拒绝原因的属性
        news.reason = reason

    return jsonify(errno=RET.OK, errmsg="OK")



#新闻审核详情请页 对应news_reciew_detail.html
@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):
    news = None
    #查询判断
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', errmsg='没有此新闻')

    #返回数据
    data = {"news" : news.to_dict()}
    return render_template('admin/news_review_detail.html',data =data)


#新闻审核的路由 对应news_reciew.html
@admin_blu.route('/news_review')
def news_review():
    page = request.args.get("p", 1)
    #获取搜索框的内容
    keywords = request.args.get('keywords',None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    #添加搜索条件
    filters = [News.status != 0]
    #判断是否否有搜索值
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_review.html', data=context)


#后台用户列表的显示 对应user_list.html
@admin_blu.route('/user_list')
def user_list():
    #获取参数
    page = request.args.get('page',1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    #设置默认值
    users = []
    total_page = 1
    current_page = 1

    #分页查询查询所有用户
    try:
        paginate = User.query.filter(User.is_admin == False ).order_by(User.last_login.desc()).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        #获取总也数
        total_page = paginate.pages
        #获取当前页
        current_page = paginate.page
        #所有的用户列表
        users = paginate.items
    except Exception as e:
        current_app.logger.error(e)

    #将对象列表转换成字典列表
    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    #定义字典对象传到前端
    context = {"total_page": total_page,
               "current_page": current_page,
               "users": user_dict_li}

    return render_template("admin/user_list.html",data = context)










#访问统计数据的路由
@admin_blu.route('/user_count')
def user_count():
    #查询总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)


    #查询月新增人数
    mon_count = 0
    #取到当前的时间对象
    t = time.localtime()
    #将时间转换成字符串
    begin_mon_date = datetime.strptime(('%d-%02d-01' % (t.tm_year, t.tm_mon)), "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False,User.create_time>begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    #查询日新增人数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon,t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)



    # 拆线图数据

    active_time = []
    active_count = []

    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到前一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date, User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }

    return render_template('admin/user_count.html', data=data)




#访问管理员登录的页面
@admin_blu.route('/login',methods = ['POST','GET'])
def admin_login():
    if request.method == 'GET':
        return render_template('admin/login.html')
    #获取参数
    username = request.form.get('username')
    password = request.form.get('password')
    #判断参数
    if not all([username,password]):
        return render_template('admin/login.html',errmsg='参数不足')
    #判断用户是否存在
    try:
        user = User.query.filter(User.mobile==username,User.is_admin==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="数据保存失败")
    if not user:
        return render_template('admin/login.html', errmsg="用户不存在")
    #判断密码是否正确
    if not user.check_passowrd(password):
        return render_template('admin/login.html',errmsg="密码错误")

    #保存session 保持链接
    session['user_id'] = user.id
    session['monile'] = user.mobile
    session['nick_name']=user.nick_name
    session['is_admin'] = user.is_admin

    return redirect(url_for('admin.admin_index'))

#访问管理首页
@admin_blu.route('/index')
@user_login_data
def admin_index():
    user = g.user
    return render_template('admin/index.html',user=user.to_admin_dict())